Unity3D MasterServer Installation on Ubuntu

1. Download the MasterServer from http://www.unity3d.com/master-server/index.html

2. Make sure you have installed the "ncurses" library. If not you this code to install it,
sudo apt-get install libncurses5-dev

3. Extract and change the directory to the extracted MasterServer directory

4. Edit the Makefile, line 90 (for the facilitator) - move "$(CFLAGS)" to the very end of the line. (Thanks for this link for suggesting this change: http://forum.unity3d.com/threads/143680-Custom-Master-Server)

5. Open the terminal change to the MasterServer directory. Type and enter "make".

6. Type and enter "./MasterServer -d"; -d is to run the process as a daemon. 

Video Streaming with Gstreamer - 02

Today I completed the code to send 4 videos from one machine to another using RTP/RTCP with Python and Gstreamer.

Following figure shows the pipeline connectivity.

Here is the code:

#!/usr/bin/python

import pygst
pygst.require("0.10")
import gst
import pygtk
import gtk

class Main:
    def __init__(self):
       
       def onPad(obj, pad, target):
           sinkpad = target.get_compatible_pad(pad, pad.get_caps())
           if sinkpad:
               pad.link(sinkpad)
           print "pad added"
           print obj
           return True
  
       self.pipeline = gst.Pipeline("mypipeline")

       # video 1
       self.src1 = gst.element_factory_make("filesrc", "filesrc1")
       self.src1.set_property("location", "x101.avi")
       self.decodebin1 = gst.element_factory_make("decodebin")
       self.encoder1 = gst.element_factory_make("x264enc")
       self.rtp_payload1 = gst.element_factory_make("rtph264pay")
       self.rtpbin1 = gst.element_factory_make("gstrtpbin")
       self.udpsink11 = gst.element_factory_make("udpsink")
       self.udpsink11.set_property("host", "192.168.1.104")
       self.udpsink11.set_property("port", 5011)
       self.udpsink12 = gst.element_factory_make("udpsink")
       self.udpsink12.set_property("host", "192.168.1.104")
       self.udpsink12.set_property("port", 5012)
       self.udpsrc1 = gst.element_factory_make("udpsrc")
       self.udpsrc1.set_property("port", 5013)
       self.pipeline.add_many(self.src1, self.decodebin1, self.encoder1, \
                             self.rtp_payload1, self.rtpbin1, self.udpsink11, self.udpsink12, self.udpsrc1)
      
       # video 1 linking
       self.src1.link(self.decodebin1)
       self.decodebin1.connect("pad-added", onPad, self.encoder1)
       self.encoder1.link(self.rtp_payload1)
       self.rtp_payload1.link_pads('src', self.rtpbin1, 'send_rtp_sink_0')
       self.rtpbin1.link_pads('send_rtp_src_0', self.udpsink11, 'sink')
       self.rtpbin1.link_pads('send_rtcp_src_0', self.udpsink12, 'sink')
       self.udpsrc1.link_pads('src', self.rtpbin1, 'recv_rtcp_sink_0')
       
       # video 2
       self.src2 = gst.element_factory_make("filesrc", "filesrc2")
       self.src2.set_property("location", "x102.avi")
       self.decodebin2 = gst.element_factory_make("decodebin")
       self.encoder2 = gst.element_factory_make("x264enc")
       self.rtp_payload2 = gst.element_factory_make("rtph264pay")
       self.rtpbin2 = gst.element_factory_make("gstrtpbin")
       self.udpsink21 = gst.element_factory_make("udpsink")
       self.udpsink21.set_property("host", "192.168.1.104")
       self.udpsink21.set_property("port", 5021)
       self.udpsink22 = gst.element_factory_make("udpsink")
       self.udpsink22.set_property("host", "192.168.1.104")
       self.udpsink22.set_property("port", 5022)
       self.udpsrc2 = gst.element_factory_make("udpsrc")
       self.udpsrc2.set_property("port", 5023)
       self.pipeline.add_many(self.src2, self.decodebin2, self.encoder2, \
                             self.rtp_payload2, self.rtpbin2, self.udpsink21, self.udpsink22, self.udpsrc2)
      
       # video 2 linking
       self.src2.link(self.decodebin2)
       self.decodebin2.connect("pad-added", onPad, self.encoder2)
       self.encoder2.link(self.rtp_payload2)
       self.rtp_payload2.link_pads('src', self.rtpbin2, 'send_rtp_sink_0')
       self.rtpbin2.link_pads('send_rtp_src_0', self.udpsink21, 'sink')
       self.rtpbin2.link_pads('send_rtcp_src_0', self.udpsink22, 'sink')
       self.udpsrc2.link_pads('src', self.rtpbin2, 'recv_rtcp_sink_0')
       
       # video 3
       self.src3 = gst.element_factory_make("filesrc", "filesrc3")
       self.src3.set_property("location", "x103.avi")
       self.decodebin3 = gst.element_factory_make("decodebin")
       self.encoder3 = gst.element_factory_make("x264enc")
       self.rtp_payload3 = gst.element_factory_make("rtph264pay")
       self.rtpbin3 = gst.element_factory_make("gstrtpbin")
       self.udpsink31 = gst.element_factory_make("udpsink")
       self.udpsink31.set_property("host", "192.168.1.104")
       self.udpsink31.set_property("port", 5031)
       self.udpsink32 = gst.element_factory_make("udpsink")
       self.udpsink32.set_property("host", "192.168.1.104")
       self.udpsink32.set_property("port", 5032)
       self.udpsrc3 = gst.element_factory_make("udpsrc")
       self.udpsrc3.set_property("port", 5033)
       self.pipeline.add_many(self.src3, self.decodebin3, self.encoder3, \
                             self.rtp_payload3, self.rtpbin3, self.udpsink31, self.udpsink32, self.udpsrc3)
      
       # video 3 linking
       self.src3.link(self.decodebin3)
       self.decodebin3.connect("pad-added", onPad, self.encoder3)
       self.encoder3.link(self.rtp_payload3)
       self.rtp_payload3.link_pads('src', self.rtpbin3, 'send_rtp_sink_0')
       self.rtpbin3.link_pads('send_rtp_src_0', self.udpsink31, 'sink')
       self.rtpbin3.link_pads('send_rtcp_src_0', self.udpsink32, 'sink')
       self.udpsrc3.link_pads('src', self.rtpbin3, 'recv_rtcp_sink_0')
       
       # video 4
       self.src4 = gst.element_factory_make("filesrc", "filesrc4")
       self.src4.set_property("location", "x104.avi")
       self.decodebin4 = gst.element_factory_make("decodebin")
       self.encoder4 = gst.element_factory_make("x264enc")
       self.rtp_payload4 = gst.element_factory_make("rtph264pay")
       self.rtpbin4 = gst.element_factory_make("gstrtpbin")
       self.udpsink41 = gst.element_factory_make("udpsink")
       self.udpsink41.set_property("host", "192.168.1.104")
       self.udpsink41.set_property("port", 5041)
       self.udpsink42 = gst.element_factory_make("udpsink")
       self.udpsink42.set_property("host", "192.168.1.104")
       self.udpsink42.set_property("port", 5042)
       self.udpsrc4 = gst.element_factory_make("udpsrc")
       self.udpsrc4.set_property("port", 5043)
       self.pipeline.add_many(self.src4, self.decodebin4, self.encoder4, \
                             self.rtp_payload4, self.rtpbin4, self.udpsink41, self.udpsink42, self.udpsrc4)
      
       # video 4 linking
       self.src4.link(self.decodebin4)
       self.decodebin4.connect("pad-added", onPad, self.encoder4)
       self.encoder4.link(self.rtp_payload4)
       self.rtp_payload4.link_pads('src', self.rtpbin4, 'send_rtp_sink_0')
       self.rtpbin4.link_pads('send_rtp_src_0', self.udpsink41, 'sink')
       self.rtpbin4.link_pads('send_rtcp_src_0', self.udpsink42, 'sink')
       self.udpsrc4.link_pads('src', self.rtpbin4, 'recv_rtcp_sink_0')
      
       self.pipeline.set_state(gst.STATE_PLAYING)
  
start = Main()
gtk.main()

Video Streaming with Gstreamer - 01

I wanted to send a video through the network few days back, on Ubuntu using Python. It took a several days to figure out how to perform such a task. I found out that Gstreamer is a good tool to start with, it has many capabilities. Today I was able to complete what I wanted to do, sending a video and receiving in the other end. Still work is not finished, I need to synchronize several streams together at the receiver as well. I will keep updating the progress and any interesting findings. So this will be a start of several future posts.

Please note that I am still new to this particular field, the purpose of this post is just sharing my experience with others. Please correct me if you find any mistakes or wrong ways of doing things in this post.

1. Sending a video file from a PC to another PC through network or Internet

Receiver's IP is 192.168.1.104. I used following codes in the Ubuntu terminal.

This is the sender's code:

gst-launch -v \
filesrc location=/home/x101.avi ! \
decodebin ! \
x264enc ! \
rtph264pay ! \
udpsink host=192.168.1.104 port=5000

This is the receiver's code:

gst-launch \
udpsrc port=5000 caps = "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, sprop-parameter-sets=(string)\"Z01AFeygbCPNLgIgAAADAC7msoAB4sWywA\\=\\=\\,aOvssg\\=\\=\", payload=(int)96, ssrc=(uint)861153369, clock-base=(uint)4026289255, seqnum-base=(uint)30449" ! \
gstrtpbin ! \
rtph264depay ! \
queue ! \
ffdec_h264 ! \
autovideosink

I used a 'avi' type video file. When you enter the code at the sender you will get a text output in the terminal. Copy the things under 'caps' field and use it in the receiver's 'caps' field.

2. Receiving and displaying two videos in the same window

Videomixer is a very useful tool to view more than one videos in the same window. Here we send two videos from the same PC and receives in second PC through different ports.

Sender's code:

gst-launch -v \
filesrc location=/home/x101.avi ! decodebin ! x264enc ! rtph264pay ! udpsink host=192.168.1.104 port=5000 \
filesrc location=/home/x102.avi ! decodebin ! x264enc ! rtph264pay ! udpsink host=192.168.1.104 port=5001


Receiver's code:

gst-launch -e \
videomixer name=mix ! ffmpegcolorspace ! xvimagesink \
\
udpsrc port=5000 caps = "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, sprop-parameter-sets=(string)\"Z01AFeygbCPNLgIgAAADAC7msoAB4sWywA\\=\\=\\,aOvssg\\=\\=\", payload=(int)96, ssrc=(uint)861153369, clock-base=(uint)4026289255, seqnum-base=(uint)30449" ! gstrtpbin ! rtph264depay ! queue ! ffdec_h264 ! \
videobox border-alpha=0 top=0 left=0 ! mix.  \
\
udpsrc port=5001 caps = "application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, sprop-parameter-sets=(string)\"Z01AFeygbCPNLgIgAAADAC7msoAB4sWywA\\=\\=\\,aOvssg\\=\\=\", payload=(int)96, ssrc=(uint)861153369, clock-base=(uint)4026289255, seqnum-base=(uint)30449" ! gstrtpbin ! rtph264depay ! queue ! ffdec_h264 ! \
videobox border-alpha=0 top=-125 left=0 ! mix. multifilesrc location=/home/Image.jpg caps="image/jpeg,framerate=1/1" ! jpegdec ! ffmpegcolorspace ! video/x-raw-yuv,format=\(fourcc\)AYUV ! mix.

Presentation slides with LATEX on Ubuntu

A. Installation of LATEX and other required components

Open a terminal window and type the following commands.

$ sudo apt-get update 

$ sudo apt-get install texlive-full gedit-latex-plugin texlive-fonts-recommended 

latex-beamer texpower texlive-pictures texlive-latex-extra texpower-examples 

imagemagick

 Your LATEX installation with Beamer front end should be ready to work now.

B. How to start with LATEX

I am going to use GEDIT text editor here. Let's say our file name is "test.tex" ("tex" is the file extension used by LATEX). Type the following in your terminal.

$ gedit test.tex &

C. A simple LATEX code

Following code will create a simple presentation in LATEX. Just copy and paste the code in to your 'test.tex' file. Concept is more similar to HTML. Just go through the lines with comments, hopefully you will be able to understand how to modify the code based on your requirement.

\documentclass[compress]{beamer} %this is to use copressed header from the template
\usepackage{beamerthemeshadow} %our theme, later you can change it

% editing header
\setbeamertemplate{headline}
{
  \leavevmode%
  \hbox{%
  \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1.8ex,leftskip=1em,left]{section in head/foot}%
    \usebeamerfont{subsection in head/foot}\hspace*{5ex}\insertsectionhead
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1.8ex,left,leftskip=1em]{subsection in head/foot}%
    \usebeamerfont{section in head/foot}\insertshorttitle\hspace*{2ex}
  \end{beamercolorbox}}%
  \vskip0pt%
}

% editing footer
\setbeamertemplate{footline}
{
  \leavevmode%
  \hbox{%
  \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,right]{author in head/foot}%
    \usebeamerfont{author in head/foot}\insertshortauthor\hspace*{2ex}
  \end{beamercolorbox}%
  \begin{beamercolorbox}[wd=.5\paperwidth,ht=2.25ex,dp=1ex,right]{date in head/foot}%
    \usebeamerfont{date in head/foot}\insertshortdate{}\hspace*{2em}
    \insertframenumber{} / \inserttotalframenumber\hspace*{2ex} 
  \end{beamercolorbox}}%
  \vskip0pt%
}

%enable numbering captions for the images
\setbeamertemplate{caption}[numbered]

%begining of the doc
\begin{document}

 \title{Presentation Title}  
 \author{Author Name}
 \date{October 2, 2012} %specify the date, if you want the current date use this, \date{\today}

 %title page
 \begin{frame}
 \titlepage
 \end{frame}

 %ToC page
 \begin{frame}
 \scriptsize
 {
  \frametitle{Table of contents}
  \tableofcontents
 }
 \end{frame} 

 %use sections for main headings
 \section{Section 1}
  
 %use subsection for subheadings
 \subsection{Section 1.1}
 \begin{frame}%create frame for each sldie
  \frametitle{Section 1.1} 
  \begin{itemize}%to have bulleted item list
   \item Item 1
    \begin{itemize}%sub bulleted items
     \item Item 1.1
    \end{itemize}
   \item Item 2
    \begin{itemize}
     \item Item 2.1
     \item Item 2.2
     \item Item 2.3
    \end{itemize}
   \item Item 3
  \end{itemize}
 \end{frame}

 \subsection{Section 1.2}
 \begin{frame}
  \frametitle{Section 1.2} 
  \begin{figure}
   \includegraphics[scale=0.3]{ubuntu} 
   \caption{Caption 1}
  \end{figure}
 \end{frame}
  
 \subsection{Section 1.3}
 \begin{frame}
  \frametitle{Subsection 1.3}
  \begin{columns}%columnize the page content
   \column{.5\textwidth}%one column is half of the text width of the slide
   \begin{figure}
    \includegraphics[scale=0.2]{ubuntu}
    \caption{Caption 2}
   \end{figure}
   \column{.5\textwidth}
   \begin{figure}
    \includegraphics[scale=0.2]{ubuntu}
    \caption{Caption 3}
   \end{figure}
  \end{columns}
 \end{frame}

 \section{Section 2}
 
 \begin{frame}
  \frametitle{Section 2}
  Section texts can be typed here. If you want to \textbf{Bold} use this.%bolding text
  To \underline{Underline} use this.
  To \emph{Emphasis} use this. %text will change to eirther Italic or normal based on the present state
 \end{frame}

 \section{Section 3}

 \subsection{Section 3.1}
 \begin{frame}
  \frametitle{Section 3.1}
  \begin{enumerate}%numbered list
   \item Item 1
    \begin{itemize}%bulleted list
     \item Item 1.1
     \item Item 1.2
    \end{itemize}
   \item Item 2
   \item Item 3
   \item Item 4
   \end{enumerate}
 \end{frame}

 \subsection{Section 3.2}
 \begin{frame}
  \frametitle{Section 3.2}
  \begin{itemize}
   \item Item 1
   \item Item 2
  \end{itemize}
  
  \begin{columns}%place 3 figures in the same slide
   \column{.5\textwidth}
   \begin{figure}
    \includegraphics[scale=0.3]{ubuntu}
    \caption{Caption A}
   \end{figure}
   \column{.5\textwidth}
   \begin{figure}
    \includegraphics[scale=0.1]{ubuntu}
    \caption{Caption B}
   \end{figure}
   \begin{figure}
    \includegraphics[scale=0.1]{ubuntu}
    \caption{Caption C}
   \end{figure}    
  \end{columns}
 \end{frame}

 \subsection{Section 3.3}
 \begin{frame}
  \frametitle{Section 3.3}
  \begin{columns}
   \column{.5\textwidth}
   \begin{itemize}
    \item Item a
    \item Item b
    \item Item c
   \end{itemize}
   \column{.5\textwidth}
   \begin{figure}
    \includegraphics[scale=0.2]{ubuntu}
    \caption{Caption}
   \end{figure}
  \end{columns}
 \end{frame}

 \begin{frame}
   {\Huge
     \vspace {0.15\textwidth}
     \begin{columns}[ccc]
       \begin{column}{0.3\textwidth}
       \end{column}
       \begin{column}{0.3\textwidth}
        \text{Thank you!}
       \end{column}
       \begin{column}{0.3\textwidth}
       \end{column}
     \end{columns}
   }
   \vspace {0.025\textwidth}
   \begin{center}
   {\huge Q\&A}
   \end{center}
 \end{frame}

\end{document}
 

Note: Your images should be in the same location with the 'test.tex' file. Later you can modify that. Pictures are recommended to be in the '.ps' format. Picture I used is 'ubuntu.ps'. So to run the code without any errors you should have a picture called 'ubuntu.ps' in the same location of 'test.tex'. Here is my file.

D. Let's run your LATEX code and create a PDF.

Paste and save the code in to 'test.tex' file. Switch back to terminal and run the following code.

$ gedit test.tex &

$ latex test.tex && dvips test.dvi && ps2pdf test.ps

This is how you can install "dvips" and "ps2pdf" if it is not installed in your box.

$ sudo apt-get install dvips ps2pdf

Now your PDF file of the presentation should be ready.

Sinhala unicode in ubuntu 9.04

1. Enable universe repository

2. apt-get install ttf-sinhala-lklug scim scim-gtk2-immodule im-switch scim-m17n m17n-db m17n-contrib language-pack-si-base
 3. rm -f ~/.xinput.d/* ; im-switch -z all_ALL -s scim-immodule

Ubuntu: How to find the VGA card type

# lspci | grep VGA


out put of my laptop:

01:00.0 VGA compatible controller: VIA Technologies, Inc. CN896/VN896/P4M900 [Chrome 9 HC] (rev 01)

How to install MySQL On Ubuntu

Installing MySQL on Ubuntu:

        To open the Terminal, go to Application > Accessories > Terminal

         

          Type the following command at terminal.

•  $sudo apt-get install mysql-server
  

             To be able to connect to mysql from internet, remove the restriction on the below file.

• Open the file by typing the following command at terminal prompt.
  

          $gksudo gedit /etc/mysql/my.cnf

• Find the line bind-address = 127.0.0.1 and comment it out as shown below.
  

           

         #bind-address           = 127.0.0.1 

• mysql comes with no root password. To set the root password, type:
  
  

        $mysqladmin -u root password your-new-password

          $sudo /etc/init.d/mysql restart

• Install mysql query browser
  

         $sudo apt-get install mysql-query-browser

• After installing, go to Applications > Programming > MySQL Query Browser to connect to mysql as shown below.
  

             
             Enter Server Hostname, Username and Password. Click on Connect and MySQL is now installed on Ubuntu.

           

Compiling your first C++ program with ubuntu

Compiling your first C++ program
If you want to run c++ program follow this procedure
g++ is the compiler that you must use.
you should use a .cpp file extension rather than a .c one
You need to create a file
sudo gedit first.cpp
add the following lines save and exit the file

Run your C++ Program using the following command
g++ first.cpp -o test
./test
Output should show as follows
Hello World!

IPv6 addressing examples

IPv6 address	Prefix length (bits)		Description		Notes
::	128		unspecified		cf. 0.0.0.0 in IPv4
::1	128		loopback address		cf. 127.0.0.1 in IPv4
::	96		embedded IPv4		These are IPv4 addresses rendered as 128-bit values (the top 96 bits are zero). Also called "IPv4 compatible IPv6 address".
::ffff:0000:0000	96		IPv4 mapped IPv6 address		The lower 32 bits are the IPv4 address. For hosts which do not support IPv6.
fe80::	10		link-local		Unroutable addresses used for local autoconfiguration.
fec0::	10		site-local		Addresses used only within one local network, unroutable outside it. Cf. RFC 1918 addresses such as used in NAT.
ff::	8		multicast
2000::	3		global unicast		All global unicast addresses are assigned from this pool (starting with hex digit 2 or 3).

Ubuntu IPv6 Config

Suppose we want to keep dhcp configuration for IPv4 and want to use a static IP for IPv6

1. Open '/etc/network/interfaces'

sudo gedit /etc/network/interfaces

2. Edit it

auto eth0
iface eth0 inet dhcp

iface eth0 inet6 static
address 2001::1
netmask 64

3. Restart networking

sudo /etc/init.d/networking restart

ping to IPv6 host

Type the command as follows:

$ ping6 localhost
$ ping6 host.domain.com
$ ping6 IPv6-address
$ ping6 2001:4860:b002::68

The best way is to ping global website such as ipv6.google.com, enter:
$ ping6 ipv6.google.com

Sample output:

ping6 ipv6.google.com
PING ipv6.google.com(2001:4860:b002::68) 56 data bytes
64 bytes from 2001:4860:b002::68: icmp_seq=0 ttl=59 time=58.4 ms
64 bytes from 2001:4860:b002::68: icmp_seq=1 ttl=59 time=56.4 ms
64 bytes from 2001:4860:b002::68: icmp_seq=2 ttl=59 time=62.1 ms
64 bytes from 2001:4860:b002::68: icmp_seq=3 ttl=59 time=56.8 ms
64 bytes from 2001:4860:b002::68: icmp_seq=4 ttl=59 time=56.5 ms
64 bytes from 2001:4860:b002::68: icmp_seq=5 ttl=59 time=59.5 ms

--- ipv6.google.com ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5002ms
rtt min/avg/max/mdev = 56.443/58.329/62.150/2.045 ms, pipe 2

Read ping6 man page for more information:
$ man ping6

dvrelay installation

1. Install Linux kernel source code by using apt-get or yum

% sudo apt-get install linux-source

It will install latest version of Linux source code. We need to use the two header files from this kernel tree.
Extract source tree

% cd /usr/src
% sudo tar jxvf linux-source-2.6.22.tar.gz2

Create symbolic link from /usr/include
% cd /usr/include
% sudo ln –s /usr/src/linux-source-2.6.22/drivers/ieee1394/dv1394.h
% sudo ln –s /usr/src/linux-source-2.6.22/drivers/ieee1394/ieee1394-ioctl.h

2. Install libraw1394
Download libraw1394 from http://sourceforge.net/projects/libraw1394
Extract package, compile and install

% tar zxvf libraw1394-1.2.0.tar.gz
% ./configure
% make
% sudo make install
% sudo make dev

NOTE) If you have an error during "./configure", please run "sudo apt-get install build-essential" to prepare
development environment.

3. Install dvrelay

Download dvrelay from http://www.interlab.ait.ac.th/dvrelay/dvrelay0.1f.tar.gz
Extract package, compile and install

% tar zxvf dvrelay0.1f.tar.gz
% ./configure
% make
% sudo make install

You can confirm that dvrelay is installed at /usr/local/bin/dvrelay

How To Install OpenOffice.org 3.0.0 On Ubuntu 8.04

1. Download the package
http://openoffice.bouncer.osuosl.org/?product=OpenOffice.org&os=linuxinteldeb&lang=en-US&version=3.0.1

2. Extract
sudo tar -zxvf OOo_3.0.1_LinuxIntel_install_en-US_deb.tar.gz

3. cd OOO300_m15_native_packed-1_en-US.9379/DEBS/

4. sudo dpkg -i *.deb

Install Times New Roman in Ubuntu

sudo apt-get install msttcorefonts
fonts can be found in /usr/share/fonts

VLC media player for Ubuntu

Ubuntu Intrepid Ibex 8.10,
Ubuntu Hardy Heron LTS 8.04

Open Synaptic (System -> Administration -> Synaptic Package Manager). In Settings -> Repositories, make sure you have a "multiverse" repository activated.

Search for vlc and install it. You should also install vlc-plugin-esd, mozilla-plugin-vlc (and libdvdcss2).

Command line way

You need to check that a "multiverse" mirror is listed in your /etc/apt/sources.list.

% sudo apt-get update
% sudo apt-get install vlc vlc-plugin-esd mozilla-plugin-vlc

Listen live radio in Ubuntu

Install required applications:

1. Applications -> Add/Remove
2. Select "Sound & Video" category from the left panel
3. Select show "All available applications"
4. Select the following applications
GStreamer extra plugins
GStreamer ffmpeg video plugin
GStreamer plugins for mms, wavpack, quicktime, musepack
5. Click "Apply changes"

Listen to internet radio

1. Applications -> Sound & Video -> Rhythmbox music player
2. Right click on the "Radio" category in the left panel and select "New internet radio station"
3. Enter URL and click on "Add"

How to view .chm files in Ubuntu

OS: Ubuntu 8.04

1. install xchm
sudo apt-get install xchm

Ubuntu Wing IDE Installation

OS: Ubuntu 8.04 (Hardy Heron)
Wing IDE version: wingide-101-3.1_3.1.8-1

1. Download WingIDE 101 for ubuntu/ debian
http://wingware.com/downloads/wingide-101

2. install enscipt
sudo apt-get install enscript

3. install wing IDE
sudo dpkg -i wingide-101-3.1_3.1.8-1_i386.deb

Ubuntu Python2.6 Installation

OS: Ubuntu 8.04 (Hardy Heron)
Python Version: 2.6.1

1. Install prerequisites
sudo aptitude install build-essential libncursesw5-dev libreadline5-dev
libssl-dev libgdbm-dev libbz2-dev libc6-dev libsqlite3-dev libdb-dev tk-dev

2. Download python 2.6
http://www.python.org/ftp/python/2.6.1/Python-2.6.1.tar.bz2

3. Uncompress it
tar -jxvf Python-2.6.1.tar.bz2

4. Change directory to python extracted python directory
cd Python-2.6.1

5. create a directory to install python2.6
here i created a directory in /etc folder
sudo mkdir /etc/python2.6

6. Configure python to install to that directory
./configure --prefix==/etc/python2.6

7. Compile python
make

8. Install python
sudo make install

9. Create symbolic link to that directory
sudo ln -s /etc/python2.6/bin/python /usr/local/bin/python2.6







How to install fonts in Ubuntu

cd /usr/share/fonts/truetype
sudo mkdir myfonts
cd myfonts
sudo cp ~/*.ttf .
sudo chown root.root *.ttf
sudo mkfontdir
cd ..
fc-cache

1. Change Directory
2. Make a directory called 'myfonts' (Can be any name)
3. Change to that direcotry
4. Copy the font that you want to install to this folder
5. Chown that font
6. Follow the rest steps